Air Governor

[DOSZORROS]

Chuck:

Most systems I am familiar with operate between about 90 lbs. and 115 lbs. The air governor controls this. On my 96 bird, I had to replace the air governor and it was mounted inside the frame rail over the drive axle. It took a young man with 5 ft. arms and three elbows to get to it.

On my 2003 LXI, it is right near the air compressor and easy to get to. It normally has a 1/4 inch tube line from the governor to the air compressor. They cost about $20 from any auto parts that caters to the trucking industry. They do go bad and replacement usually solves the problem.

The valves on the air compressor can also get sticky and effect start and stop pressures. You can remove the cover and clean the valves without tearing the air compressor down. It is a fairly simple procedure.